Alert archive / Wyoming / Winter Storm Warnings in 2011
Winter Storm Warning 17, NWS Cheyenne, WY
NWS Cheyenne, WY issued this winter storm warning at Nov 29, 2011, 7:48 PM MST for 5 counties in Wyoming. It took effect at Nov 30, 2011, 6:00 PM MST. It was in force for 17 hr. 40 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Nov 29, 2011, 7:48 PM MST (02:48 UTC)
- In effect from
- Nov 30, 2011, 6:00 PM MST
- Expired
- Dec 1, 2011, 10:47 AM MST
- In force
- 17 hr
- Issued by
- NWS Cheyenne, WY
Counties Albany County, WY, Carbon County, WY, Converse County, WY, Laramie County, WY, Platte County, WY
The radar
The Cheyenne radar (KCYS), 109 km from the middle of the area, began a volume at 02:48 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Dec 1, 12:28 AM MST | SNOW 0.5 | Laramie, WY | |
| Dec 1, 12:57 AM MST | SNOW 0.3 | Cheyenne, WY | |
| Dec 1, 12:57 AM MST | SNOW 0.3 | Cheyenne, WY | |
| Dec 1, 1:13 AM MST | SNOW 0.8 | Douglas, WY | |
| Dec 1, 1:55 AM MST | SNOW 0.5 | Wheatland, WY | 0.25 TO 0.5 INCHES OF SNOW ON THE GROUND. REPORTS OF UP TO 1.5 INCHES OF SNOW ON THE GROUND AT 11 PM...20 MILES NORTH OF WHEATLAND. DRIFTING SNOW AND VISIBILITY POOR IN PLATTE COUNTY. |
| Dec 1, 1:58 AM MST | SNOW 0.4 | Cheyenne, WY | 0.5 INCHES OF TOTAL STORM SNOWFAL. |
| Dec 1, 2:35 AM MST | SNOW 0.5 | Medicine Bow, WY | |
| Dec 1, 3:05 AM MST | SNOW 0.4 | Cheyenne, WY | VARYING DEPTH DUE TO WIND. |
| Dec 1, 3:30 AM MST | SNOW 0.2 | Pine Bluffs, WY | |
| Dec 1, 3:30 AM MST | SNOW 1 | Laramie, WY | UP TO AN INCH IN TOWN. |
| Dec 1, 3:30 AM MST | SNOW 1.2 | 38 Sw Douglas, WY | LAPRELE CREEK SNOTEL. |
| Dec 1, 3:30 AM MST | SNOW 1.5 | 10 Wsw Encampment, WY | OLD BATTLE SNOTEL. |
| Dec 1, 3:30 AM MST | SNOW 1.5 | 7 Nw Centennial, WY | BROOKLYN LAKE SNOTEL. |
| Dec 1, 3:30 AM MST | SNOW 2.4 | 10 Se Laramie, WY | CROW CREEK SNOTEL |
| Dec 1, 3:30 AM MST | SNOW 3.5 | 30 Wnw Laramie, WY | SAND LAKE SNOTEL. |
| Dec 1, 3:30 AM MST | SNOW 3.5 | 6 Sw Centennial, WY | CINNABAR PARK SNOTEL. |
| Dec 1, 3:30 AM MST | SNOW 4.5 | 5 Sw Encampment, WY | WEBBER SPRINGS SNOTEL. |
| Dec 1, 3:30 AM MST | SNOW 7.5 | 19 Wsw Encampment, WY | DIVIDE PEAK SNOTEL |
| Dec 1, 4:00 AM MST | SNOW 0 | 12 N Baggs, WY | WINTER STORM. VISIBILITIES ZERO TO 1/4 MILE IN BLOWING SNOW AND VERY STRONG WINDS BETWEEN MILE MARKERS 17 AND 26 ON HIGHWAY 789 BETWEEN 330 AM AND 430 AM. 5 FOOT WIDE DRIFTS 8-10 INCHES DEEP ACROSS HIGHWAY 789. |
| Dec 1, 4:00 AM MST | SNOW 2.5 | 6 N Cheyenne, WY | |
| Dec 1, 4:00 AM MST | SNOW 2.5 | 6 Wsw Burns, WY | |
| Dec 1, 4:00 AM MST | SNOW 3 | 17 Wnw Cheyenne, WY | |
| Dec 1, 4:00 AM MST | SNOW 4 | 27 Wsw Laramie, WY | |
| Dec 1, 4:00 AM MST | SNOW 4.5 | 9 Wsw Rock River, WY | |
| Dec 1, 4:00 AM MST | HEAVY SNOW 8.4 | 2 S Elk Mountain, WY | |
| Dec 1, 4:00 AM MST | HEAVY SNOW 14 | 11 Wsw Boxelder, WY | RENO HILL SNOTEL. ELEVATION 8400 FEET. SWE 0.7 INCHES FROM 30/18L TO 01/04L. 20 TO 1 RATIO USED. |
| Dec 1, 4:00 AM MST | HEAVY SNOW 14 | 4 S Horse Peak, WY | RENO HILL SNOTEL. ELEVATION 8400 FEET. SWE 0.7 INCHES FROM 30/18L TO 01/04L. 20 TO 1 RATIO USED. |
| Dec 1, 5:20 AM MST | SNOW 1 | Laramie, WY | NOT MUCH ADDITIONAL ACCUMULATION SINCE 2 AM. |
| Dec 1, 5:25 AM MST | SNOW 0.2 | Rawlins, WY | REPORTS OF MORE SNOW NEAR ARLINGTON AND OF SOME TRUCKS HAVING SLID OFF INTERSTATE 80. |
| Dec 1, 5:28 AM MST | SNOW 0.5 | Saratoga, WY | |
| Dec 1, 5:30 AM MST | SNOW 1 | Douglas, WY | |
| Dec 1, 5:32 AM MST | SNOW 3 | Glenrock, WY | SNOW DEPTH WAS BETWEEN 2.5 AND 3 INCHES. |
| Dec 1, 5:36 AM MST | SNOW 0.2 | Pine Bluffs, WY | NOT MUCH ADDITIONAL ACCUMULATION SINCE 2 AM. |
| Dec 1, 5:36 AM MST | SNOW 1 | Cheyenne, WY | |
| Dec 1, 5:41 AM MST | SNOW 0.5 | Wheatland, WY | REPORTS OF LARGER AMOUNTS IN CHUGWATER. |
| Dec 1, 7:58 AM MST | HEAVY SNOW 8 | Elk Mountain, WY | THE TOWING COMPANY REPORTED THAT OVERNIGHT THEY HAD A FEW CARS AND TRUCKS OFF THE ROAD. |
| Dec 1, 8:00 AM MST | HEAVY SNOW 8 | Centennial, WY | |
| Dec 1, 8:00 AM MST | HEAVY SNOW 10 | 27 Sw Laramie, WY | SNOW DRIFTS TO 2 FEET |
| Dec 1, 10:17 AM MST | SNOW 2 | Bill, WY | ROADS ICE COVERED FROM BILL TO DOUGLAS. |
| Dec 1, 10:25 AM MST | SNOW 5 | 7 E Garrett, WY | DEPTH RUNS ABOUT 4-5 INCHES OUT IN THE YARD. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Riverton, WY (KRIW), launched 00:00Z, 2.8 hours before the alert went out and 264 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2258 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 50 m²/s²
- 0-3 km storm-relative helicity
- 150 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
907 WWUS45 KCYS 300248 WSWCYS URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 748 PM MST TUE NOV 29 2011 ...COMBINATION OF SNOW...STRONG WINDS AND VERY COLD TEMPERATURES TO AFFECT SOUTH CENTRAL AND SOUTHEAST WYOMING WEDNESDAY NIGHT AND THURSDAY... .A POTENT PACIFIC STORM SYSTEM WILL MOVE EAST INTO THE CENTRAL ROCKIES ON WEDNESDAY. A STRONG COLD FRONT WILL SURGE SOUTHEAST ACROSS THE AREA BY WEDNESDAY EVENING. THE COMBINATION OF THE COLD FRONT AND UPPER LEVEL ENERGY FROM THE STORM SYSTEM WILL BRING SNOW AND STRONG NORTH TO NORTHEAST WINDS THROUGH THURSDAY AFTERNOON. SIGNIFICANT SNOWFALL AMOUNTS ARE EXPECTED...MAINLY ALONG AND SOUTH OF THE INTERSTATE 80 CORRIDOR FROM RAWLINS TO PINE BLUFFS. IN ADDITION TO THE SNOW...NORTH TO NORTHEAST WINDS OF 25 TO 40 MPH WITH GUSTS UP TO 55 MPH WILL PRODUCE SIGNIFICANT BLOWING AND DRIFTING SNOW...ALONG WITH VERY COLD WIND CHILLS. WYZ104-109>114-301500- /O.UPG.KCYS.WS.A.0013.111201T0100Z-111201T2200Z/ /O.NEW.KCYS.WS.W.0017.111201T0100Z-111201T2200Z/ FERRIS/SEMINOE/SHIRLEY MOUNTAINS-CENTRAL CARBON COUNTY- NORTH SNOWY RANGE FOOTHILLS-SOUTHWEST CARBON COUNTY- SIERRA MADRE RANGE-UPPER NORTH PLATTE RIVER BASIN-SNOWY RANGE- INCLUDING THE CITIES OF...MUDDY GAP...RAWLINS...SINCLAIR... HANNA...ARLINGTON...ELK MOUNTAIN...BAGGS...DIXON...SARATOGA... ENCAMPMENT...RIVERSIDE...CENTENNIAL...ALBANY...WOODS LANDING 748 PM MST TUE NOV 29 2011 ...WINTER STORM WARNING IN EFFECT FROM 6 PM WEDNESDAY TO 3 PM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER STORM WARNING FOR MODERATE SNOW...STRONG NORTH TO NORTHEAST WINDS AND VERY COLD TEMPERATURES...WHICH IS IN EFFECT FROM 6 PM WEDNESDAY TO 3 PM MST THURSDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * TIMING...NORTH TO NORTHEAST WINDS WILL INCREASE BEHIND A STRONG COLD FRONT LATE WEDNESDAY AFTERNOON...WITH SNOW DEVELOPING BY EARLY EVENING. STRONGEST WINDS WILL OCCUR FROM MIDNIGHT WEDNESDAY NIGHT THROUGH 9 AM THURSDAY. THE SNOW WILL TAPER OFF THURSDAY MORNING...HOWEVER STRONG WINDS WILL CONTINUE TO PRODUCE BLOWING AND DRIFTING SNOW THROUGH THURSDAY AFTERNOON. * TOTAL SNOW ACCUMULATIONS...4 TO 7 INCHES...WITH HIGHER AMOUNTS OF 12 TO 18 INCHES LIKELY ALONG NORTH FACING SLOPES OF THE SNOWY AND SIERRA MADRE RANGES. STRONG WINDS WILL CREATE SNOW DRIFTS OF SEVERAL FEET IN MANY AREAS. * WINDS/VISIBILITIES...NORTH TO NORTHEAST WINDS OF 25 TO 40 MPH WITH GUSTS TO 55 MPH. VISIBILITIES WILL BE REDUCED TO NEAR ZERO AT TIMES IN BLOWING AND DRIFTING SNOW. * IMPACTS...TRAVEL WILL BECOME DANGEROUS IF NOT IMPOSSIBLE WITH BLOWING AND DRIFTING SNOW REDUCING VISIBILITIES AND COVERING ROADWAYS...ESPECIALLY FOR INTERSTATE 80 AND HIGHWAY 789 IN WESTERN CARBON COUNTY. ADDITIONALLY...WIND CHILL VALUES WILL PLUMMET TO BETWEEN ZERO AND MINUS 10 DEGREES WEDNESDAY NIGHT AND THURSDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED TO OCCUR. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ118-119-301500- /O.EXA.KCYS.WS.A.0013.111201T0100Z-111201T2200Z/ CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY- INCLUDING THE CITIES OF...CHEYENNE...BURNS...CARPENTER...ALBIN... PINE BLUFFS 748 PM MST TUE NOV 29 2011 ...WINTER STORM WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY AFTERNOON... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER STORM WATCH...WHICH IS IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY AFTERNOON. * TIMING...NORTH TO NORTHEAST WINDS WILL INCREASE BEHIND A STRONG COLD FRONT LATE WEDNESDAY AFTERNOON...WITH SNOW DEVELOPING IN THE EVENING. THE SNOW WILL TAPER OFF THURSDAY MORNING...HOWEVER STRONG WINDS WILL CONTINUE TO PRODUCE AREAS OF BLOWING AND DRIFTING SNOW THROUGH THURSDAY AFTERNOON. * TOTAL SNOW ACCUMULATIONS...4 TO 7 INCHES FOR THE VALLEYS AND 7 TO 10 INCHES FOR THE SOUTHERN LARAMIE RANGE. HIGHER AMOUNTS WILL BE POSSIBLE ALONG NORTH FACING SLOPES. * WINDS/VISIBILITIES...NORTH TO NORTHEAST WINDS OF 25 TO 40 MPH WITH GUSTS TO 55 MPH. VISIBILITIES MAY BE REDUCED TO NEAR ZERO AT TIMES IN BLOWING AND DRIFTING SNOW. * IMPACTS...TRAVEL MAY BECOME DANGEROUS WITH BLOWING AND DRIFTING SNOW REDUCING VISIBILITIES AND COVERING ROADWAYS... ESPECIALLY ALONG THE INTERSTATE 80 CORRIDOR FROM WEST OF CHEYENNE THROUGH ARLINGTON. ADDITIONALLY...WIND CHILL VALUES WILL PLUMMET TO BETWEEN ZERO AND MINUS 10 DEGREES WEDNESDAY NIGHT AND THURSDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT SNOW...BLOWING SNOW AND DANGEROUSLY COLD TEMPERATURES THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR THE LATEST FORECASTS. && $$ WYZ115>117-301500- /O.CON.KCYS.WS.A.0013.111201T0100Z-111201T2200Z/ LARAMIE VALLEY-SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS- INCLUDING THE CITIES OF...LARAMIE...VEDAUWOO...BUFORD... PUMPKIN VINE...HORSE CREEK...HARRIMAN...WHITAKER 748 PM MST TUE NOV 29 2011 ...WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY AFTERNOON... A WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY AFTERNOON. * TIMING...NORTH TO NORTHEAST WINDS WILL INCREASE BEHIND A STRONG COLD FRONT LATE WEDNESDAY AFTERNOON...WITH SNOW DEVELOPING IN THE EVENING. THE SNOW WILL TAPER OFF THURSDAY MORNING...HOWEVER STRONG WINDS WILL CONTINUE TO PRODUCE AREAS OF BLOWING AND DRIFTING SNOW THROUGH THURSDAY AFTERNOON. * TOTAL SNOW ACCUMULATIONS...3 TO 5 INCHES. * WINDS/VISIBILITIES...NORTH TO NORTHEAST WINDS OF 25 TO 40 MPH WITH GUSTS TO 55 MPH. VISIBILITIES MAY BE REDUCED TO NEAR ZERO AT TIMES IN BLOWING AND DRIFTING SNOW. * IMPACTS...TRAVEL MAY BECOME DANGEROUS WITH BLOWING AND DRIFTING SNOW REDUCING VISIBILITIES AND COVERING ROADWAYS... ESPECIALLY ALONG THE INTERSTATE 80 CORRIDOR FROM PINE BLUFFS THROUGH CHEYENNE. ADDITIONALLY...WIND CHILL VALUES WILL PLUMMET TO BETWEEN ZERO AND MINUS 10 DEGREES WEDNESDAY NIGHT AND THURSDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT SNOW...BLOWING SNOW AND DANGEROUSLY COLD TEMPERATURES THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR THE LATEST FORECASTS. && $$
6 follow-up statements
290 WWUS45 KCYS 301031 WSWCYS URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 331 AM MST WED NOV 30 2011 ...A COMBINATION OF SNOW...STRONG WINDS AND VERY COLD TEMPERATURES WILL AFFECT SOUTH CENTRAL AND SOUTHEAST WYOMING INTO THE SOUTHWEST PART OF THE NEBRASKA PANHANDLE TONIGHT AND THURSDAY... .A STRONG COLD FRONT WILL SURGE SOUTHEAST ACROSS THE AREA THIS AFTERNOON. STRONG WINDS ARE EXPECTED TO DEVELOP BEHIND THE COLD FRONT ALONG WITH MUCH COLDER AIR. THE COMBINATION OF THE STRONG WINDS AND SOME UPPER LEVEL ENERGY FROM A STORM SYSTEM OVER THE WESTERN PART OF THE COUNTRY WILL RESULT IN SNOW AND BLOWING SNOW ACROSS MUCH OF THE AREA TONIGHT INTO THURSDAY AFTERNOON. THOUGH HEAVY SNOWFALL AMOUNTS ARE NOT EXPECTED OUTSIDE OF THE MOUNTAINS... NORTH TO NORTHEAST WINDS OF 20 TO 35 MPH WITH SOME GUSTS AROUND 45 MPH WILL PRODUCE WIDESPREAD BLOWING AND DRIFTING SNOW...AREAS OF VERY LOW VISIBILITIES...AND VERY COLD WIND CHILLS. WYZ115>119-302300- /O.UPG.KCYS.WS.A.0013.111201T0100Z-111201T2200Z/ /O.EXB.KCYS.WS.W.0017.111201T0600Z-111201T2200Z/ LARAMIE VALLEY-SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS- CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY- INCLUDING THE CITIES OF...LARAMIE...VEDAUWOO...BUFORD... PUMPKIN VINE...HORSE CREEK...HARRIMAN...WHITAKER...CHEYENNE... BURNS...CARPENTER...ALBIN...PINE BLUFFS 331 AM MST WED NOV 30 2011 ...WINTER STORM WARNING IN EFFECT FROM 11 PM THIS EVENING TO 3 PM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM 11 PM THIS EVENING TO 3 PM MST THURSDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * TIMING...LATE THIS EVENING INTO THURSDAY AFTERNOON. * TOTAL SNOW ACCUMULATIONS...3 TO 7 INCHES...HIGHEST OVER THE SOUTH LARAMIE RANGE AND THE LARAMIE VALLEY. * WINDS/VISIBILITIES...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH GUSTS TO 40 MPH. VISIBILITIES MAY BE LOCALLY REDUCED TO NEAR ZERO AT TIMES IN BLOWING AND DRIFTING SNOW. * IMPACTS...TRAVEL WILL LIKELY BECOME DANGEROUS WITH BLOWING AND DRIFTING SNOW REDUCING VISIBILITIES AND COVERING ROADWAYS... ESPECIALLY ALONG THE INTERSTATE 80 CORRIDOR FROM PINE BLUFFS THROUGH CHEYENNE TO LARAMIE. && PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT ALONG WITH THE WINDS WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ104-109>114-302300- /O.CON.KCYS.WS.W.0017.111201T0100Z-111201T2200Z/ FERRIS/SEMINOE/SHIRLEY MOUNTAINS-CENTRAL CARBON COUNTY- NORTH SNOWY RANGE FOOTHILLS-SOUTHWEST CARBON COUNTY- SIERRA MADRE RANGE-UPPER NORTH PLATTE RIVER BASIN-SNOWY RANGE- INCLUDING THE CITIES OF...MUDDY GAP...RAWLINS...SINCLAIR... HANNA...ARLINGTON...ELK MOUNTAIN...BAGGS...DIXON...SARATOGA... ENCAMPMENT...RIVERSIDE...CENTENNIAL...ALBANY...WOODS LANDING 331 AM MST WED NOV 30 2011 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 3 PM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 3 PM MST THURSDAY. * TIMING...THIS EVENING INTO THURSDAY AFTERNOON. * TOTAL SNOW ACCUMULATIONS...3 TO 6 INCHES...WITH AMOUNTS UP TO 12 INCHES ALONG NORTH FACING SLOPES OF THE SNOWY AND SIERRA MADRE RANGES. * WINDS/VISIBILITIES...NORTH TO NORTHEAST WINDS OF 25 TO 35 MPH WITH GUSTS TO 45 MPH. VISIBILITIES WILL BE REDUCED TO NEAR ZERO AT TIMES IN BLOWING AND DRIFTING SNOW. * IMPACTS...TRAVEL WILL BECOME DANGEROUS IF NOT IMPOSSIBLE WITH BLOWING AND DRIFTING SNOW REDUCING VISIBILITIES AND COVERING ROADWAYS...ESPECIALLY FOR INTERSTATE 80 AND HIGHWAY 789 IN WESTERN CARBON COUNTY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED TO OCCUR. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT ALONG WITH THE STRONG WINDS WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ NEZ020-054-WYZ106>108-302300- /O.NEW.KCYS.WW.Y.0029.111201T0600Z-111201T2200Z/ BANNER-KIMBALL-CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- EAST PLATTE COUNTY-GOSHEN COUNTY- INCLUDING THE CITIES OF...HARRISBURG...KIMBALL...BORDEAUX... GLENDO...WHEATLAND...CHUGWATER...GUERNSEY...TORRINGTON 331 AM MST WED NOV 30 2011 ...WINTER WEATHER ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 3 PM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER WEATHER ADVISORY FOR BLOWING SNOW...WHICH IS IN EFFECT FROM 11 PM THIS EVENING TO 3 PM MST THURSDAY. * TIMING...LATE THIS EVENING INTO THURSDAY AFTERNOON. * TOTAL SNOW ACCUMULATIONS...1 TO 3 INCHES...MAINLY SOUTH OF THE NORTH PLATTE RIVER. * WINDS/VISIBILITIES...NORTH AT 20 TO 30 MPH WITH SOME GUSTS AROUND 40 MPH. * IMPACTS...MOSTLY TO TRAVEL WITH BLOWING AND DRIFTING SNOW REDUCING VISIBILITIES AND COVERING ROADWAYS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO STRONG WINDS BLOWING SNOW AROUND. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. && $$ RE
615 WWUS45 KCYS 302009 WSWCYS URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 109 PM MST WED NOV 30 2011 ...SNOW...STRONG WINDS AND VERY COLD TEMPERATURES WILL AFFECT SOUTHEAST WYOMING AND WESTERN NEBRASKA TONIGHT AND THURSDAY... .MUCH COLDER AIR WILL INVADE TONIGHT IN THE WAKE OF A STRONG COLD FRONT. BRISK NORTH WINDS WILL THEN DEVELOP. THE COMBINATION OF THE STRONG WINDS AND ENERGY FROM A STORM SYSTEM OVER THE WESTERN PART OF THE COUNTRY WILL RESULT IN SNOW AND BLOWING SNOW INTO THURSDAY AFTERNOON. NORTH TO NORTHEAST WINDS OF 20 TO 35 MPH WITH GUSTS TO 45 MPH WILL PRODUCE WIDESPREAD BLOWING AND DRIFTING SNOW...NEAR ZERO VISIBILITIES...AND VERY COLD WIND CHILLS. WYZ104-109>114-010600- /O.CON.KCYS.WS.W.0017.111201T0100Z-111201T2200Z/ FERRIS/SEMINOE/SHIRLEY MOUNTAINS-CENTRAL CARBON COUNTY- NORTH SNOWY RANGE FOOTHILLS-SOUTHWEST CARBON COUNTY- SIERRA MADRE RANGE-UPPER NORTH PLATTE RIVER BASIN-SNOWY RANGE- INCLUDING THE CITIES OF...MUDDY GAP...RAWLINS...SINCLAIR... HANNA...ARLINGTON...ELK MOUNTAIN...BAGGS...DIXON...SARATOGA... ENCAMPMENT...RIVERSIDE...CENTENNIAL...ALBANY...WOODS LANDING 109 PM MST WED NOV 30 2011 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 3 PM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 3 PM MST THURSDAY. * TIMING...THIS EVENING INTO THURSDAY AFTERNOON. * TOTAL SNOW ACCUMULATIONS...4 TO 7 INCHES...WITH AMOUNTS UP TO 13 INCHES OVER THE SNOWY AND SIERRA MADRE RANGES. * WINDS/VISIBILITIES...NORTH TO NORTHEAST WINDS OF 25 TO 35 MPH WITH GUSTS TO 45 MPH. VISIBILITIES WILL BE REDUCED TO NEAR ZERO AT TIMES IN BLOWING AND DRIFTING SNOW. * IMPACTS...TRAVEL WILL BECOME DANGEROUS IF NOT IMPOSSIBLE WITH BLOWING AND DRIFTING SNOW REDUCING VISIBILITIES AND COVERING ROADWAYS...ESPECIALLY FOR INTERSTATE 80 AND HIGHWAY 789 IN WESTERN CARBON COUNTY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED TO OCCUR. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT ALONG WITH THE STRONG WINDS WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ115>119-010600- /O.CON.KCYS.WS.W.0017.111201T0600Z-111201T2200Z/ LARAMIE VALLEY-SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS- CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY- INCLUDING THE CITIES OF...LARAMIE...VEDAUWOO...BUFORD... PUMPKIN VINE...HORSE CREEK...HARRIMAN...WHITAKER...CHEYENNE... BURNS...CARPENTER...ALBIN...PINE BLUFFS 109 PM MST WED NOV 30 2011 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 3 PM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 3 PM MST THURSDAY. * TIMING...LATE THIS EVENING INTO THURSDAY AFTERNOON. * TOTAL SNOW ACCUMULATIONS...3 TO 7 INCHES...HIGHEST OVER THE SOUTH LARAMIE RANGE AND THE LARAMIE VALLEY. * WINDS/VISIBILITIES...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH GUSTS TO 40 MPH. VISIBILITIES WILL BE REDUCED TO NEAR ZERO AT TIMES IN BLOWING AND DRIFTING SNOW. * IMPACTS...TRAVEL WILL BECOME DANGEROUS WITH BLOWING AND DRIFTING SNOW REDUCING VISIBILITIES AND COVERING ROADWAYS... ESPECIALLY ALONG INTERSTATE 80 FROM PINE BLUFFS THROUGH CHEYENNE TO LARAMIE. A WINTER STORM WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT ALONG WITH THE WINDS WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ NEZ020-054-WYZ106>108-010600- /O.CON.KCYS.WW.Y.0029.111201T0600Z-111201T2200Z/ BANNER-KIMBALL-CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- EAST PLATTE COUNTY-GOSHEN COUNTY- INCLUDING THE CITIES OF...HARRISBURG...KIMBALL...BORDEAUX... GLENDO...WHEATLAND...CHUGWATER...GUERNSEY...TORRINGTON 109 PM MST WED NOV 30 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 3 PM MST THURSDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 3 PM MST THURSDAY. * TIMING...LATE THIS EVENING INTO THURSDAY AFTERNOON. * TOTAL SNOW ACCUMULATIONS...2 TO 4 INCHES. * WINDS/VISIBILITIES...NORTH AT 20 TO 30 MPH WITH GUSTS TO 40 MPH. * IMPACTS...BLOWING AND DRIFTING SNOW WILL REDUCE VISIBILITIES AND COVER ROADWAYS. ROADS WILL BE SNOWPACKED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO STRONG WINDS BLOWING SNOW AROUND. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. && $$ RUBIN
979 WWUS45 KCYS 010218 WSWCYS URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 718 PM MST WED NOV 30 2011 ...SNOW...STRONG WINDS AND VERY COLD TEMPERATURES WILL AFFECT SOUTHEAST WYOMING AND NEBRASKA PANHANDLE TONIGHT AND THURSDAY... .MUCH COLDER AIR WILL MOVE INTO THE REGION TONIGHT IN THE WAKE OF A STRONG COLD FRONT. AREAS OF LIGHT TO MODERATE SNOW WILL THEN DEVELOP...ALONG WITH STRONG NORTH TO NORTHEAST WINDS ON THE ORDER OF 20 TO 35 MPH AND GUSTS AS HIGH AS 45 MPH. THIS WILL RESULT IN SIGNIFICANT BLOWING AND DRIFTING SNOW AND NEAR ZERO VISIBILITIES. DANGEROUS WIND CHILL VALUES AS LOW AS 10 DEGREES BELOW ZERO ARE ALSO LIKELY. WYZ103-105-011430- /O.EXA.KCYS.WS.W.0017.000000T0000Z-111201T2200Z/ NORTH LARAMIE RANGE-SHIRLEY BASIN- INCLUDING THE CITY OF...MEDICINE BOW 718 PM MST WED NOV 30 2011 ...WINTER STORM WARNING IN EFFECT UNTIL 3 PM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL 3 PM MST THURSDAY. * TIMING...THIS EVENING INTO THURSDAY AFTERNOON. * TOTAL SNOW ACCUMULATIONS...5 TO 9 INCHES...WITH HIGHER ACCUMULATIONS OVER NORTH FACING SLOPES. * WINDS/VISIBILITIES...NORTH TO NORTHEAST WINDS OF 25 TO 35 MPH WITH GUSTS TO 45 MPH. VISIBILITIES WILL BE REDUCED TO NEAR ZERO AT TIMES IN BLOWING AND DRIFTING SNOW. * IMPACTS...TRAVEL WILL BECOME DANGEROUS OR IMPOSSIBLE AS BLOWING AND DRIFTING SNOW RESULTS IN LOW VISIBILITIES AND SNOW COVERED ROADS. DANGEROUS WIND CHILLS RANGING FROM ZERO TO 10 BELOW ARE ALSO LIKELY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED TO OCCUR. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT ALONG WITH THE STRONG WINDS WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ104-109>114-011430- /O.CON.KCYS.WS.W.0017.000000T0000Z-111201T2200Z/ FERRIS/SEMINOE/SHIRLEY MOUNTAINS-CENTRAL CARBON COUNTY- NORTH SNOWY RANGE FOOTHILLS-SOUTHWEST CARBON COUNTY- SIERRA MADRE RANGE-UPPER NORTH PLATTE RIVER BASIN-SNOWY RANGE- INCLUDING THE CITIES OF...MUDDY GAP...RAWLINS...SINCLAIR... HANNA...ARLINGTON...ELK MOUNTAIN...BAGGS...DIXON...SARATOGA... ENCAMPMENT...RIVERSIDE...CENTENNIAL...ALBANY...WOODS LANDING 718 PM MST WED NOV 30 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM MST THURSDAY. * TIMING...THIS EVENING INTO THURSDAY AFTERNOON. * TOTAL SNOW ACCUMULATIONS...4 TO 7 INCHES...WITH AMOUNTS UP TO 13 INCHES OVER THE SNOWY AND SIERRA MADRE RANGES. * WINDS/VISIBILITIES...NORTH TO NORTHEAST WINDS OF 25 TO 35 MPH WITH GUSTS TO 45 MPH. VISIBILITIES WILL BE REDUCED TO NEAR ZERO AT TIMES IN BLOWING AND DRIFTING SNOW. * IMPACTS...TRAVEL WILL BECOME DANGEROUS OR IMPOSSIBLE AS BLOWING AND DRIFTING SNOW RESULTS IN LOW VISIBILITIES AND SNOW COVERED ROADS. INTERSTATE 80 FROM ARLINGTON TO RAWLINS AND HIGHWAY 789 IN WESTERN CARBON COUNTY MAY BE SEVERELY IMPACTED. DANGEROUS WIND CHILLS RANGING FROM ZERO TO 10 BELOW ARE ALSO LIKELY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED TO OCCUR. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT ALONG WITH THE STRONG WINDS WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ115>119-011430- /O.CON.KCYS.WS.W.0017.111201T0600Z-111201T2200Z/ LARAMIE VALLEY-SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS- CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY- INCLUDING THE CITIES OF...LARAMIE...VEDAUWOO...BUFORD... PUMPKIN VINE...HORSE CREEK...HARRIMAN...WHITAKER...CHEYENNE... BURNS...CARPENTER...ALBIN...PINE BLUFFS 718 PM MST WED NOV 30 2011 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 3 PM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 3 PM MST THURSDAY. * TIMING...LATE THIS EVENING INTO THURSDAY AFTERNOON. * TOTAL SNOW ACCUMULATIONS...3 TO 7 INCHES...HIGHEST OVER THE SOUTH LARAMIE RANGE AND THE LARAMIE VALLEY. * WINDS/VISIBILITIES...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH GUSTS TO 45 MPH. VISIBILITIES WILL BE REDUCED TO NEAR ZERO AT TIMES IN BLOWING AND DRIFTING SNOW. * IMPACTS...TRAVEL WILL BECOME DANGEROUS OR IMPOSSIBLE AS BLOWING AND DRIFTING SNOW RESULTS IN LOW VISIBILITIES AND SNOW COVERED ROADS. INTERSTATE 80 FROM PINE BLUFFS TO CHEYENNE AND LARAMIE MAY BE SEVERELY IMPACTED. DANGEROUS WIND CHILLS RANGING FROM ZERO TO 10 BELOW ARE ALSO LIKELY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT ALONG WITH THE WINDS WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ NEZ002-003-019-021-055-095-096-WYZ101-102-011430- /O.EXA.KCYS.WW.Y.0029.111201T0600Z-111201T2200Z/ DAWES-BOX BUTTE-SCOTTS BLUFF-MORRILL-CHEYENNE-NORTH SIOUX- SOUTH SIOUX-CONVERSE COUNTY LOWER ELEVATIONS-NIOBRARA COUNTY- INCLUDING THE CITIES OF...CHADRON...ALLIANCE...SCOTTSBLUFF... GERING...BRIDGEPORT...BAYARD...SIDNEY...HARRISON...AGATE... DOUGLAS...GLENROCK...LUSK 718 PM MST WED NOV 30 2011 ...WINTER WEATHER ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 3 PM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM 11 PM THIS EVENING TO 3 PM MST THURSDAY. * TIMING...LATE THIS EVENING INTO THURSDAY AFTERNOON. * TOTAL SNOW ACCUMULATIONS...2 TO 4 INCHES. * WINDS/VISIBILITIES...NORTH WINDS OF 20 TO 30 MPH WITH GUSTS TO 40 MPH. VISIBILITIES WILL BE REDUCED TO NEAR ZERO AT TIMES IN BLOWING AND DRIFTING SNOW. * IMPACTS...TRAVEL WILL BECOME DANGEROUS OR IMPOSSIBLE AS BLOWING AND DRIFTING SNOW RESULTS IN LOW VISIBILITIES AND SNOW COVERED ROADS. DANGEROUS WIND CHILLS RANGING FROM ZERO TO 10 BELOW ARE ALSO LIKELY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO STRONG WINDS BLOWING SNOW AROUND. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. && $$ NEZ020-054-WYZ106>108-011430- /O.CON.KCYS.WW.Y.0029.111201T0600Z-111201T2200Z/ BANNER-KIMBALL-CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- EAST PLATTE COUNTY-GOSHEN COUNTY- INCLUDING THE CITIES OF...HARRISBURG...KIMBALL...BORDEAUX... GLENDO...WHEATLAND...CHUGWATER...GUERNSEY...TORRINGTON 718 PM MST WED NOV 30 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 3 PM MST THURSDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 3 PM MST THURSDAY. * TIMING...LATE THIS EVENING INTO THURSDAY AFTERNOON. * TOTAL SNOW ACCUMULATIONS...2 TO 4 INCHES. * WINDS/VISIBILITIES...NORTH WINDS OF 20 TO 30 MPH WITH GUSTS TO 40 MPH. VISIBILITIES WILL BE REDUCED TO NEAR ZERO AT TIMES IN BLOWING AND DRIFTING SNOW. * IMPACTS...TRAVEL WILL BECOME DANGEROUS OR IMPOSSIBLE AS BLOWING AND DRIFTING SNOW RESULTS IN LOW VISIBILITIES AND SNOW COVERED ROADS. DANGEROUS WIND CHILLS RANGING FROM ZERO TO 10 BELOW ARE ALSO LIKELY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO STRONG WINDS BLOWING SNOW AROUND. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. && $$ HAMMER/CLAYCOMB
246 WWUS45 KCYS 010329 WSWCYS URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 829 PM MST WED NOV 30 2011 ...SNOW...STRONG WINDS AND VERY COLD TEMPERATURES WILL AFFECT SOUTHEAST WYOMING AND NEBRASKA PANHANDLE TONIGHT AND THURSDAY... .MUCH COLDER AIR WILL MOVE INTO THE REGION TONIGHT IN THE WAKE OF A STRONG COLD FRONT. AREAS OF LIGHT TO MODERATE SNOW WILL THEN DEVELOP...ALONG WITH STRONG NORTH TO NORTHEAST WINDS ON THE ORDER OF 20 TO 35 MPH AND GUSTS AS HIGH AS 45 MPH. THIS WILL RESULT IN SIGNIFICANT BLOWING AND DRIFTING SNOW AND NEAR ZERO VISIBILITIES. DANGEROUS WIND CHILL VALUES AS LOW AS 10 DEGREES BELOW ZERO ARE ALSO LIKELY. WYZ103>105-109>114-011530- /O.CON.KCYS.WS.W.0017.000000T0000Z-111201T2200Z/ NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS- SHIRLEY BASIN-CENTRAL CARBON COUNTY-NORTH SNOWY RANGE FOOTHILLS- SOUTHWEST CARBON COUNTY-SIERRA MADRE RANGE- UPPER NORTH PLATTE RIVER BASIN-SNOWY RANGE- INCLUDING THE CITIES OF...MUDDY GAP...MEDICINE BOW...RAWLINS... SINCLAIR...HANNA...ARLINGTON...ELK MOUNTAIN...BAGGS...DIXON... SARATOGA...ENCAMPMENT...RIVERSIDE...CENTENNIAL...ALBANY... WOODS LANDING 829 PM MST WED NOV 30 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM MST THURSDAY. * TIMING...THIS EVENING INTO THURSDAY AFTERNOON. * TOTAL SNOW ACCUMULATIONS...A GENERAL SNOWFALL OF 4 TO 7 INCHES ACROSS SOUTHERN CARBON AND ALBANY COUNTIES...AND AMOUNTS UP TO 13 INCHES IN THE SNOWY AND SIERRA MADRE RANGES. THE NORTHERN LARAMIE RANGE CAN EXPECT 6 TO 12 INCHES OF NEW SNOW...WITH HIGHER AMOUNTS OVER NORTH FACING SLOPES. * WINDS/VISIBILITIES...NORTH TO NORTHEAST WINDS OF 25 TO 35 MPH WITH GUSTS TO 45 MPH. VISIBILITIES WILL BE REDUCED TO NEAR ZERO AT TIMES IN BLOWING AND DRIFTING SNOW. * IMPACTS...TRAVEL WILL BECOME DANGEROUS OR IMPOSSIBLE AS BLOWING AND DRIFTING SNOW RESULTS IN LOW VISIBILITIES AND SNOW COVERED ROADS. DANGEROUS WIND CHILLS RANGING FROM ZERO TO 10 BELOW ARE ALSO LIKELY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED TO OCCUR. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT ALONG WITH THE STRONG WINDS WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ115>119-011530- /O.CON.KCYS.WS.W.0017.111201T0600Z-111201T2200Z/ LARAMIE VALLEY-SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS- CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY- INCLUDING THE CITIES OF...LARAMIE...VEDAUWOO...BUFORD... PUMPKIN VINE...HORSE CREEK...HARRIMAN...WHITAKER...CHEYENNE... BURNS...CARPENTER...ALBIN...PINE BLUFFS 829 PM MST WED NOV 30 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM MST THURSDAY. * TIMING...LATE THIS EVENING INTO THURSDAY AFTERNOON. * TOTAL SNOW ACCUMULATIONS...3 TO 7 INCHES...HIGHEST OVER THE SOUTH LARAMIE RANGE AND THE LARAMIE VALLEY. * WINDS/VISIBILITIES...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH GUSTS TO 45 MPH. VISIBILITIES WILL BE REDUCED TO NEAR ZERO AT TIMES IN BLOWING AND DRIFTING SNOW. * IMPACTS...TRAVEL WILL BECOME DANGEROUS OR IMPOSSIBLE AS BLOWING AND DRIFTING SNOW RESULTS IN LOW VISIBILITIES AND SNOW COVERED ROADS. INTERSTATE 80 FROM PINE BLUFFS TO CHEYENNE AND LARAMIE MAY BE SEVERELY IMPACTED. DANGEROUS WIND CHILLS RANGING FROM ZERO TO 10 BELOW ARE ALSO LIKELY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT ALONG WITH THE WINDS WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ NEZ002-003-019>021-054-055-095-096-WYZ101-102-106>108-011530- /O.CON.KCYS.WW.Y.0029.111201T0600Z-111201T2200Z/ DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE- NORTH SIOUX-SOUTH SIOUX-CONVERSE COUNTY LOWER ELEVATIONS- NIOBRARA COUNTY-CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- EAST PLATTE COUNTY-GOSHEN COUNTY- INCLUDING THE CITIES OF...CHADRON...ALLIANCE...SCOTTSBLUFF... GERING...HARRISBURG...BRIDGEPORT...BAYARD...KIMBALL...SIDNEY... HARRISON...AGATE...DOUGLAS...GLENROCK...LUSK...BORDEAUX... GLENDO...WHEATLAND...CHUGWATER...GUERNSEY...TORRINGTON 829 PM MST WED NOV 30 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM MST THURSDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM MST THURSDAY. * TIMING...LATE THIS EVENING INTO THURSDAY AFTERNOON. * TOTAL SNOW ACCUMULATIONS...2 TO 4 INCHES. * WINDS/VISIBILITIES...NORTH WINDS OF 20 TO 35 MPH WITH GUSTS TO 40 MPH. VISIBILITIES WILL BE REDUCED TO NEAR ZERO AT TIMES IN BLOWING AND DRIFTING SNOW. * IMPACTS...TRAVEL WILL BECOME DANGEROUS OR IMPOSSIBLE AS BLOWING AND DRIFTING SNOW RESULTS IN LOW VISIBILITIES AND SNOW COVERED ROADS. DANGEROUS WIND CHILLS RANGING FROM ZERO TO 10 BELOW ARE ALSO LIKELY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO STRONG WINDS BLOWING SNOW AROUND. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. && $$ HAMMER/CLAYCOMB
901 WWUS45 KCYS 011058 WSWCYS URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 358 AM MST THU DEC 1 2011 ...LIGHT SNOW...STRONG WINDS AND COLD TEMPERATURES WILL AFFECT SOUTHEAST WYOMING THIS MORNING... .LIGHT SNOW AND STRONG WINDS BEGAN WITH THE PASSAGE OF A COLD FRONT LAST EVENING. THE SNOW AND WINDS WILL CONTINUE THROUGH THE MORNING HOURS...BUT WILL BEGIN TO TAPER OFF LATE THIS MORNING. NEW SNOWFALL ACROSS SOUTHEAST WYOMING THIS MORNING WILL BE 1 TO 3 INCHES OVER THE LOWER ELEVATIONS...WITH 3 TO 7 INCHES OVER THE SNOWY AND SIERRA MADRE RANGES. IN ADDITION...NORTH TO NORTHEAST WINDS WILL GUST BETWEEN 35 AND 45 MPH THIS MORNING AND WILL PRODUCE BLOWING AND DRIFTING SNOW AND COLD WIND CHILL VALUES. WYZ103>105-109>111-113-115>119-011800- /O.CAN.KCYS.WS.W.0017.000000T0000Z-111201T2200Z/ /O.EXB.KCYS.WW.Y.0029.000000T0000Z-111201T1800Z/ NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS- SHIRLEY BASIN-CENTRAL CARBON COUNTY-NORTH SNOWY RANGE FOOTHILLS- SOUTHWEST CARBON COUNTY-UPPER NORTH PLATTE RIVER BASIN- LARAMIE VALLEY-SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS- CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY- INCLUDING THE CITIES OF...MUDDY GAP...MEDICINE BOW...RAWLINS... SINCLAIR...HANNA...ARLINGTON...ELK MOUNTAIN...BAGGS...DIXON... SARATOGA...ENCAMPMENT...RIVERSIDE...LARAMIE...VEDAUWOO...BUFORD... PUMPKIN VINE...HORSE CREEK...HARRIMAN...WHITAKER...CHEYENNE... BURNS...CARPENTER...ALBIN...PINE BLUFFS 358 AM MST THU DEC 1 2011 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM MST THIS MORNING... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL 11 AM MST THIS MORNING. THE WINTER STORM WARNING HAS BEEN CANCELLED. * TIMING...UNTIL 11 AM THIS MORNING. * TOTAL SNOW ACCUMULATIONS...1 TO 4 INCHES. * WINDS/VISIBILITIES...NORTH WINDS OF 20 TO 35 MPH WITH GUSTS TO 45 MPH. VISIBILITIES WILL BE REDUCED TO A MILE OR LESS IN THE BLOWING AND DRIFTING SNOW. * IMPACTS...TRAVEL WILL BE HAZARDOUS AS THE SNOW...WINDS AND BLOWING AND DRIFTING SNOW WILL RESULT IN LOW VISIBILITIES AND SNOW COVERED AND SLICK ROADS. WIND CHILL VALUES WILL ALSO RANGE FROM 5 BELOW ZERO TO 10 ABOVE ZERO. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. && $$ NEZ002-003-019>021-054-055-095-096-011200- /O.CAN.KCYS.WW.Y.0029.000000T0000Z-111201T2200Z/ DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE- NORTH SIOUX-SOUTH SIOUX- INCLUDING THE CITIES OF...CHADRON...ALLIANCE...SCOTTSBLUFF... GERING...HARRISBURG...BRIDGEPORT...BAYARD...KIMBALL...SIDNEY... HARRISON...AGATE 358 AM MST THU DEC 1 2011 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS CANCELLED THE WINTER WEATHER ADVISORY. WEATHER CONDITIONS ARE NOT EXPECTED TO BE AS HAZARDOUS AS EARLIER THOUGHT OVER THE PANHANDLE THIS MORNING. FOR THAT REASON...THE WINTER WEATHER ADVISORY HAS BEEN CANCELLED. HOWEVER...LIGHT SNOW OF UP TO 2 INCHES CAN BE EXPECTED THIS MORNING ALONG WITH NORTHERLY WINDS GUSTING AS HIGH AS 35 MPH. THOSE CONDITIONS WILL CREATE SLICK ROADS AND REDUCED VISIBILITIES. $$ WYZ112-114-011800- /O.EXB.KCYS.WW.Y.0029.000000T0000Z-111201T1800Z/ /O.EXT.KCYS.WS.W.0017.000000T0000Z-111201T1800Z/ SIERRA MADRE RANGE-SNOWY RANGE- INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING 358 AM MST THU DEC 1 2011 ...WINTER STORM WARNING IN EFFECT UNTIL 11 AM MST THIS MORNING... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS CONTINUED THE WINTER STORM WARNING FOR SNOW AND BLOWING SNOW FOR THE SNOWY AND SIERRA MADRE RANGES UNTIL 11 AM. * TIMING...UNTIL 11 AM THIS MORNING. * TOTAL SNOW ACCUMULATIONS...3 TO 8 INCHES. * WINDS/VISIBILITIES...NORTH WINDS OF 20 TO 35 MPH WITH GUSTS TO 45 MPH. VISIBILITIES WILL BE REDUCED TO NEAR ZERO AT TIMES IN BLOWING AND DRIFTING SNOW. * IMPACTS...TRAVEL WILL BECOME DANGEROUS DUE TO THE SNOW...WINDS AND BLOWING SNOW CREATING LOW VISIBILITIES AND SNOWPACKED AND SLICK ROADS. ALSO...DANGEROUS WIND CHILLS RANGING FROM ZERO TO 10 BELOW ARE ALSO LIKELY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. TRAVEL WILL BE HAZARDOUS AND DIFFICULT...SO USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. && $$ WYZ101-102-106>108-011800- /O.EXT.KCYS.WW.Y.0029.000000T0000Z-111201T1800Z/ CONVERSE COUNTY LOWER ELEVATIONS-NIOBRARA COUNTY- CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- EAST PLATTE COUNTY-GOSHEN COUNTY- INCLUDING THE CITIES OF...DOUGLAS...GLENROCK...LUSK...BORDEAUX... GLENDO...WHEATLAND...CHUGWATER...GUERNSEY...TORRINGTON 358 AM MST THU DEC 1 2011 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 11 AM MST THIS MORNING... THE WINTER WEATHER ADVISORY IS NOW IN EFFECT UNTIL 11 AM MST THIS MORNING. * TIMING...UNTIL 11 AM THIS MORNING. * TOTAL SNOW ACCUMULATIONS...2 TO 4 INCHES. * WINDS/VISIBILITIES...NORTH WINDS OF 20 TO 35 MPH WITH GUSTS TO 45 MPH. VISIBILITIES WILL BE REDUCED TO A MILE OR LESS AT TIMES IN BLOWING AND DRIFTING SNOW. * IMPACTS...TRAVEL WILL BE HAZARDOUS AS SNOW...WINDS AND BLOWING AND DRIFTING SNOW CREATE LOW VISIBILITIES AND SLICK ROADS. ALSO...WIND CHILL VALUES WILL BE FROM 5 BELOW ZERO TO 10 ABOVE ZERO. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO SNOW AND WINDS CREATING BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. && $$ WEILAND
996 WWUS45 KCYS 011747 WSWCYS URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 1047 AM MST THU DEC 1 2011 ...SNOWFALL EVENT COMING TO AN END TODAY... .A CLOSED UPPER TROUGH WILL MOVE SLOWLY EAST ACROSS ARIZONA TODAY WITH THE WEAKER PART OF THE OPEN TROUGH ALOFT MOVING ACROSS WYOMING AND NEBRASKA TODAY. LIGHT SNOW WILL GRADUALLY END AND DECREASE IN AREAL COVERAGE AND INTENSITY THROUGH THE AFTERNOON HOURS FROM NORTH TO SOUTH. LIGHT SNOW WILL BE SLOWEST TO END ACROSS THE SOUTHERN COUNTIES SOUTH OF A RAWLINS TO CHEYENNE LINE NEAR THE COLORADO STATE LINE. WYZ112-114-011900- /O.CAN.KCYS.WS.W.0017.000000T0000Z-111201T1800Z/ /O.CAN.KCYS.WW.Y.0029.000000T0000Z-111201T1800Z/ SIERRA MADRE RANGE-SNOWY RANGE- INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING 1047 AM MST THU DEC 1 2011 ...WINTER STORM WARNING IS CANCELLED... ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS CANCELLED THE WINTER STORM WARNING. THE WINTER WEATHER ADVISORY HAS BEEN CANCELLED. OCCASIONAL LIGHT SNOW WILL CONTINUE THROUGH EARLY AFTERNOON THEN SNOW WILL DECREASE TO SCATTERED SNOW SHOWERS. ADDITIONAL SNOWFALL ACCUMULATIONS WILL BE LESS THAN THREE INCHES. BLUSTERY NORTH WINDS AND COLD TEMPERATURES WILL PRODUCE COLD WIND CHILL TEMPERATURES ALONG WITH AREAS OF BLOWING SNOW AND REDUCED VISIBILITIES. $$ WYZ101>111-113-115>119-011900- /O.CAN.KCYS.WW.Y.0029.000000T0000Z-111201T1800Z/ CONVERSE COUNTY LOWER ELEVATIONS-NIOBRARA COUNTY- NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS- SHIRLEY BASIN-CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- EAST PLATTE COUNTY-GOSHEN COUNTY-CENTRAL CARBON COUNTY- NORTH SNOWY RANGE FOOTHILLS-SOUTHWEST CARBON COUNTY- UPPER NORTH PLATTE RIVER BASIN-LARAMIE VALLEY-SOUTH LARAMIE RANGE- SOUTH LARAMIE RANGE FOOTHILLS-CENTRAL LARAMIE COUNTY- EAST LARAMIE COUNTY- INCLUDING THE CITIES OF...DOUGLAS...GLENROCK...LUSK...MUDDY GAP... MEDICINE BOW...BORDEAUX...GLENDO...WHEATLAND...CHUGWATER... GUERNSEY...TORRINGTON...RAWLINS...SINCLAIR...HANNA...ARLINGTON... ELK MOUNTAIN...BAGGS...DIXON...SARATOGA...ENCAMPMENT... RIVERSIDE...LARAMIE...VEDAUWOO...BUFORD...PUMPKIN VINE... HORSE CREEK...HARRIMAN...WHITAKER...CHEYENNE...BURNS... CARPENTER...ALBIN...PINE BLUFFS 1047 AM MST THU DEC 1 2011 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS CANCELLED THE WINTER WEATHER ADVISORY. AREAS OF LIGHT SNOW WILL CONTINUE THROUGH EARLY AFTERNOON SOUTH OF A RAWLINS TO SCOTTSBLUFF LINE WITH LITTLE IF ANY ADDITIONAL ACCUMULATION...THOUGH AN INCH OR TWO OF SNOW MAY ACCUMULATE OVER THE HIGHER PEAKS OF THE SOUTHERN LARAMIE RANGE BETWEEN CHEYENNE AND LARAMIE...WITH AN INCH OR LESS OF ADDITIONAL SNOW OVER THE SOUTHERN LARAMIE VALLEY ALONG AND SOUTH OF LARAMIE. SNOW WILL GRADUALLY DECREASE IN AREAL COVERAGE AND INTENSITY FROM NORTH TO SOUTH THROUGH THE AFTERNOON HOURS. COLD NORTH WINDS WILL COMBINE WITH THE COLD TEMPERATURES TO PRODUCE VERY COLD WIND CHILL TEMPERATURES ALONG WITH AREAS OF BLOWING SNOW REDUCING VISIBILITIES AT TIMES. $$ RUBIN
What forecasters said that day
The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Cheyenne, WY wrote its last area forecast discussion before this winter storm warning went out at Nov 29, 5:07 PM MST, 2 hours 41 minutes earlier.
Area forecast discussion, Nov 29, 5:07 PM MST, 2 hours 41 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHEYENNE WY
507 PM MST TUE NOV 29 2011
.AVIATION...00Z TAFS
PRIMARILIY VFR CONDITIONS EXPECTED THROUGH MOST OF THE NEXT 24
HOURS FOR OUR SOUTHEAST WYOMING AND NEBRASKA PANHANDLE AIRPORTS.
GOING TO SEE A RAPID DECREASE IN CONDITIONS THOUGH LATE WEDNESDAY
AFTERNOON INTO THE EVENING HOURS AS A COLD FRONT MOVES RAPIDLY
THROUGH THE AREA. SNOW EXPECTED TO FORM ALONG AND BEHIND THE
FRONT WITH CONDITIONS RAPIDLY FALLING TO MVFR AND IFR CONDITIONS.
BY MID EVENING WEDNESDAY...LOOKS LIKE ALL OF OUR WYOMING AIRPOTS
WILL BE IFR/LIFR WITH THE PANHANDLE AIRPORTS FOLLOWING SUITE BY
LATE EVENING.
CLAYCOMB
&&
.PREV DISCUSSION... /ISSUED 242 PM MST TUE NOV 29 2011/
SHORT TERM...TONIGHT THROUGH THURSDAY NIGHT...EARLY AFTERNOON
WATER VAPOR IMAGERY SHOWED THE CWA BETWEEN A POTENT UPPER LEVEL
SYSTEM MOVING NORTHEAST ACROSS THE APPALACHIANS AND ANOTHER
APPROACHING THE BRITISH COLUMBIA COAST. A TRANSITORY SHORT WAVE
RIDGE AXIS EXTENDED FROM THE WESTERN DAKOTAS INTO UTAH. UPPER
LEVEL MOISTURE WAS STREAMING EAST-SOUTHEAST THROUGH THE NORTHERN
ROCKIES AND HIGH PLAINS. WESTERLY LOW LEVEL WINDS WERE PROVIDING
ABOVE SEASONAL TEMPERATURES FOR LATE NOVEMBER WITH READINGS IN THE
40S TO LOWER 50S.
THE MAIN WEATHER CHALLENGES WITH THE SHORT TERM WILL DEAL WITH THE
POTENTIAL FOR SIGNIFICANT SNOWFALL...WINDS AND TEMPERATURES. THE
12Z NAM...GFS AND ECMWF CONTINUE TO COME INTO BETTER AGREEMENT
WITH THE POTENT UPPER LEVEL SYSTEM MOVING INTO THE PACIFIC
NORTHWEST TONIGHT...AND THROUGH THE ROCKIES AND HIGH PLAINS
WEDNESDAY THROUGH THURSDAY. ALL MODELS DEPICT AS A POSITIVELY-
TILTED UPPER TROUGH DEEPENING... EVENTUALLY CLOSING OFF AND
SPLITTING FROM THE NORTHERN STREAM FLOW BY THURSDAY NIGHT.
A LEE SURFACE TROUGH WILL DEVELOP EAST OF THE FRONT RANGE WITH
HIGH PRESSURE TO THE WEST TONIGHT. THE PRESSURE GRADIENT WILL
TIGHTEN TONIGHT ALONG WITH A DEEPENING STABLE LAYER JUST ABOVE
THE SURFACE. THIS PATTERN FAVORS STRONG AND GUSTY WEST TO SOUTHWEST
GAP WINDS OF 25 TO 40 MPH WITH GUSTS TO 55 MPH FOR THE WIND PRONE
LOCATIONS ALONG AND WEST OF THE LARAMIE RANGE. ALSO...700MB WINDS
ARE PROGGED BETWEEN 40 AND 50 KT DURING THE 06Z TO 18Z WEDNESDAY
PERIOD. THESE GUSTY WINDS WILL DIMINISH WEDNESDAY MORNING...WITH
BREEZY WEST TO SOUTHWEST WINDS THROUGH THE AFTERNOON. WITH THE
DOWNSLOPING WIND PATTERN...IT WILL REMAIN MILD TONIGHT WITH LOWS
IN THE 20S AND 30S. IT WILL BE QUITE MILD THROUGH EARLY WEDNESDAY
AFTERNOON WITH TEMPERATURES REACHING THE 50S TO LOWER 60S ACROSS
THE PLAINS AND WESTERN PANHANDLE. THEN THE WEATHER TURNS SOUTH AS
A STRONG COLD FRONT WITH ITS ORIGIN IN THE NORTHWEST TERRITORIES
IN CANADA SURGES QUICKLY SOUTHEAST ACROSS WYOMING AND WESTERN
NEBRASKA BY WEDNESDAY EVENING. BEHIND THE FRONT...WINDS ABRUPTLY
SHIFT TO THE NORTH AND NORTHEAST AND BECOME STRONG AND GUSTY...
DUE TO THE SIGNIFICANT SURFACE PRESSURE RISES AS A COLD CANADIAN
HIGH SINKS SOUTH INTO THE NORTHERN ROCKIES. THE POST-FRONTAL COLD
AIR ADVECTION WILL CAUSE TEMPERATURES TO QUICKLY PLUMMET INTO THE
TEENS AND 20S LATE WEDNESDAY NIGHT. THE COMBINATION OF THE COLDER
TEMPERATURES AND GUSTY WINDS WILL DRIVE WIND CHILL VALUES TO ZERO
TO 15 BELOW. THE OTHER BYPRODUCT OF THIS DYNAMIC WEATHER SYSTEM
WILL BE THE SNOWFALL. STRONG NORTH TO NORTHEAST UPSLOPE WINDS
COMBINED WITH THE ENERGY ALOFT WILL CREATE THE POTENTIAL FOR
SIGNIFICANT SNOWFALL ACROSS MUCH OF SOUTH CENTRAL AND SOUTHEAST
WYOMING WEDNESDAY EVENING THROUGH THURSDAY MORNING. A WINTER STORM
WATCH HAS BEEN EXTENDED EAST TO INCLUDE THE SNOWY/SIERRA MADRE AND
SOUTHERN LARAMIE RANGES AS WELL AS THE FOOTHILLS AND VALLEYS.
EXPECTED STORM TOTALS FROM 4 TO 10 INCHES ARE EXPECTED IN THE
WATCH AREA...WITH 2 TO 4 INCHES EAST OF THE LARAMIE RANGE AND
1 TO 2 INCHES ACROSS THE WESTERN NEBRASKA PANHANDLE. THE STRONG
AND GUSTY WINDS WILL PRODUCE AREAS OF BLOWING AND DRIFTING SNOW
ALONG WITH GREATLY REDUCED VISIBILITIES...ESPECIALLY ACROSS SOUTH
CENTRAL AND SOUTHEAST WYOMING. THE SNOW WILL TAPER OFF THURSDAY
MORNING...HOWEVER THE GUSTY WINDS WILL NOT SUBSIDE UNTIL THURSDAY
AFTERNOON. HIGHS THURSDAY AFTERNOON WILL REMAIN RATHER CHILLY...
RANGING FROM THE SINGLE DIGITS ABOVE ZERO OVER THE MOUNTAINS TO
THE TEENS AND 20S ELSEWHERE. CLEAR SKIES AND LIGHTER WINDS
THURSDAY NIGHT WILL PROMOTE IDEAL RADIATIONAL COOLING WITH LOWS
AROUND ZERO ALONG AND WEST OF THE LARAMIE RANGE TO THE SINGLE
DIGITS AND LOWER TEENS ABOVE ZERO TO THE EAST.
LONG TERM...FRIDAY THROUGH TUESDAY. 500 MB SYNOPTIC PATTERN
REASONABLY SIMILAR ON THE 12Z NAM...GFS AND ECMWF...LEADING TO
MODERATE TO HIGH CONFIDENCE IN THEIR RESPECTIVE SOLUTIONS.
FRIDAY...DRY DAY ON TAP. GFS SHOWS ANOTHER COLD FRONT MOVING ACROSS
OUR COUNTIES FROM THE NORTH...AS A REINFORCING BLOW...WHILE THE NAM
ONLY SHOWS A SURFACE TROUGH PASSAGE.
SATURDAY...NEXT SHORTWAVE TROUGH ALOFT MOVES THROUGH AFTER ANOTHER
RELATIVELY STRONG COLD FRONTAL PASSAGE. HIGH TEMPERATURES WILL BE IN
THE TEENS AND 20S...AND POSSIBLY COLDER...IF CLOUDS HANG ON MUCH OF
THE DAY AS GFS PROGGED 1000-500 MB THICKNESSES ARE NEAR 5220 METERS.
SUNDAY...MORE REINFORCING COLD AIR ADVECTS ACROSS OUR COUNTIES UNDER
NORTH FLOW ALOFT. HIGH TEMPERATURES AGAIN QUITE COLD WITH 1000-500
MB THICKNESSES NEAR 5250 METERS. WITH THE COLD AIRMASS NOT BEING
ABLE TO HOLD MUCH MOISTURE AND ONLY WEAK DYNAMICS...NOT EXPECTING
MUCH SNOWFALL ACCUMULATION OR AREAL COVERAGE OF SNOW...THOUGH
CYCLONIC CURVATURE ALOFT WILL AID IN PRODUCING ISOLATED TO SCATTERED
COVERAGE OF SNOW.
MONDAY...LOWER AND MID LEVELS DRY OUR SLIGHTLY...THUS WILL KEEP IT
DRY. COLD NORTH FLOW ALOFT WILL LIMIT WARMING. MAXIMUM TEMPERATURES
IN THE 20S AND 30S WITH 1000-500 MB THICKNESSES NEAR 5370 METERS.
TUESDAY...WARMING TREND AS FLOW ALOFT BACKS TO NORTHWEST AND 500 MB
HEIGHTS EXCEED 5700 METERS. HIGH TEMPERATURES IN THE 30S WEST AND
LOWER TO MIDDLE 40S EAST WITH 1000-500 MB THICKNESSES NEAR 5520
METERS. CONTINUED DRY WITH LIMITED LOW AND MID LEVEL MOISTURE
AVAILABILITY.
AVIATION...18Z TAFS. VFR. SCATTERED TO BROKEN CLOUDS AT OR ABOVE
12000 FEET AGL. WEAK SURFACE LEE TROUGHING WILL PROMOTE WEST TO
SOUTHWEST WINDS OF 5 TO 20 MPH WITH LOCALIZED GUSTS TO 40 MPH AT
WIND PRONE LOCALES SUCH AS BORDEAUX...ARLINGTON...WHITAKER...
VEDAUWOO AND BUFORD.
FIRE WEATHER...DRY AND UNSEASONABLY MILD CONDITIONS WILL CONTINUE
THROUGH WEDNESDAY MORNING. WEST TO SOUTHWEST WINDS WILL INCREASE
THROUGH THIS EVENING...WITH SOME LOCATIONS ALONG AND WEST OF THE
LARAMIE RANGE GUSTING FROM 45 TO 55 MPH OVERNIGHT TONIGHT.
MINIMUM RELATIVE HUMIDITIES FROM 20 TO 25 PERCENT ARE EXPECTED
ACROSS THE PLAINS EAST OF THE SOUTHERN LARAMIE RANGE ON WEDNESDAY...
ALONG WITH WEST TO SOUTHWEST WINDS GUSTING FROM 20 TO 30 MPH. A
STRONG COLD FRONT WILL MOVE QUICKLY SOUTHEAST THROUGH THE DISTRICTS
WEDNESDAY AFTERNOON AND EVENING...USHERING IN GUSTY NORTH TO NORTHEAST
WINDS...SNOW...AND MUCH COLDER TEMPERATURES THROUGH THURSDAY. THE
COLD TEMPERATURES WILL PERSIST THROUGH THE WEEKEND...WITH ANOTHER
CHANCE FOR LIGHT SNOW FRIDAY NIGHT AND SATURDAY.
&&
.CYS WATCHES/WARNINGS/ADVISORIES...
WY...WINTER STORM WATCH FROM 6 PM WEDNESDAY TO 3 PM THURSDAY FOR
WYZ104-WYZ109-WYZ110-WYZ111-WYZ112-WYZ113-WYZ114-WYZ115-
WYZ116-WYZ117.
NE...NONE.
&&
SHORT TERM...JAMSKI
LONG TERM/AVIATION...RUBINHazardous weather outlook, Nov 29, 2:01 PM MST, 5 hours 47 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CHEYENNE WY 201 PM MST TUE NOV 29 2011 WYZ101>119-301200- CONVERSE COUNTY LOWER ELEVATIONS-NIOBRARA COUNTY- NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS- SHIRLEY BASIN-CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- EAST PLATTE COUNTY-GOSHEN COUNTY-CENTRAL CARBON COUNTY- NORTH SNOWY RANGE FOOTHILLS-SOUTHWEST CARBON COUNTY- SIERRA MADRE RANGE-UPPER NORTH PLATTE RIVER BASIN-SNOWY RANGE- LARAMIE VALLEY-SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS- CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY- 201 PM MST TUE NOV 29 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL WYOMING... SOUTH CENTRAL WYOMING AND SOUTHEAST WYOMING. .DAY ONE...THIS AFTERNOON AND TONIGHT LOCALLY STRONG AND GUSTY WEST TO SOUTHWEST WINDS WILL DEVELOP LATER TONIGHT ACROSS THE WIND PRONE AREAS OF ARLINGTON AND BETWEEN CHUGWATER AND WHEATLAND. WIND GUSTS OF 40 TO 55 MPH WILL BE POSSIBLE. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY A STRONG COLD FRONT WILL SWEEP SOUTHEAST ACROSS THE AREA WEDNESDAY AFTERNOON...WITH MUCH COLDER TEMPERATURES AND SNOW SPREADING ACROSS THE AREA WEDNESDAY NIGHT AND THURSDAY MORNING. SIGNIFICANT SNOW ACCUMULATIONS ALONG WITH BLOWING AND DRIFTING SNOW DUE TO THE STRONG AND GUSTY NORTH TO NORTHEAST WINDS WILL OCCUR ALONG AND SOUTH OF THE INTERSTATE 80 CORRIDOR FROM WEST OF CHEYENNE TO RAWLINS...WHERE A WINTER STORM WATCH IS IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY AFTERNOON. AREAS EAST OF THE LARAMIE RANGE MAY RECEIVE TWO TO FOUR INCHES OF SNOW. WIND CHILL READINGS WILL RANGE FROM THE SINGLE DIGITS ABOVE ZERO TO AS LOW AS 10 TO 15 BELOW ZERO FOR THE HIGHER TERRAIN WEDNESDAY NIGHT AND THURSDAY MORNING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED THIS AFTERNOON AND TONIGHT. && THIS PRODUCT...ALONG WITH OTHER WEATHER...HYDROLOGIC...AND CLIMATE INFORMATION IS AVAILABLE ON THE WEB AT... HTTP://WEATHER.GOV/CHEYENNE NEZ002-003-019>021-054-055-095-096-301200- DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE- NORTH SIOUX-SOUTH SIOUX- 201 PM MST TUE NOV 29 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN NEBRASKA PANHANDLE. .DAY ONE...THIS AFTERNOON AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY A STRONG COLD FRONT WILL SWEEP SOUTHEAST ACROSS THE AREA BY WEDNESDAY EVENING...WITH MUCH COLDER TEMPERATURES AND SNOW SPREADING ACROSS THE AREA WEDNESDAY NIGHT AND THURSDAY MORNING. SOME BLOWING AND DRIFTING SNOW WILL OCCUR DUE TO THE STRONG AND GUSTY NORTH TO NORTHEAST WINDS. SNOW ACCUMULATIONS WILL BE LIGHT...GENERALLY FROM ONE TO TWO INCHES. WIND CHILL READINGS WILL DROP INTO THE SINGLE DIGITS ABOVE ZERO WEDNESDAY NIGHT AND THURSDAY MORNING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED THIS AFTERNOON AND TONIGHT. && THIS PRODUCT...ALONG WITH OTHER WEATHER...HYDROLOGIC...AND CLIMATE INFORMATION IS AVAILABLE ON THE WEB AT... HTTP://WEATHER.GOV/CHEYENNE JAMSKI
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 30, 3:31 AM MST | Winter Weather Advisory | CYS | Albany, Carbon, Converse, Goshen, Laramie, Niobrara and 1 more | 31 hr |
Nearby
Winter Storm Warnings in Wyoming, 2011Every winter storm warning in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.